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ostree/src/libostree/ostree-repo-file.c

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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
*
* Copyright (C) 2011 Colin Walters <walters@verbum.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Author: Colin Walters <walters@verbum.org>
*/
#include "config.h"
#include "otutil.h"
#include "ostree-repo-file-enumerator.h"
#include "ostree-repo-private.h"
static void ostree_repo_file_file_iface_init (GFileIface *iface);
struct OstreeRepoFile
{
GObject parent_instance;
OstreeRepo *repo;
OstreeRepoFile *parent;
int index;
char *name;
char *cached_file_checksum;
char *tree_contents_checksum;
GVariant *tree_contents;
char *tree_metadata_checksum;
GVariant *tree_metadata;
};
G_DEFINE_TYPE_WITH_CODE (OstreeRepoFile, ostree_repo_file, G_TYPE_OBJECT,
G_IMPLEMENT_INTERFACE (G_TYPE_FILE,
ostree_repo_file_file_iface_init))
static void
ostree_repo_file_finalize (GObject *object)
{
OstreeRepoFile *self;
self = OSTREE_REPO_FILE (object);
g_clear_pointer (&self->tree_contents, (GDestroyNotify) g_variant_unref);
g_clear_pointer (&self->tree_metadata, (GDestroyNotify) g_variant_unref);
g_free (self->cached_file_checksum);
g_free (self->tree_contents_checksum);
g_free (self->tree_metadata_checksum);
g_free (self->name);
G_OBJECT_CLASS (ostree_repo_file_parent_class)->finalize (object);
}
static void
ostree_repo_file_dispose (GObject *object)
{
OstreeRepoFile *self;
self = OSTREE_REPO_FILE (object);
g_clear_object (&self->repo);
g_clear_object (&self->parent);
if (G_OBJECT_CLASS (ostree_repo_file_parent_class)->dispose)
G_OBJECT_CLASS (ostree_repo_file_parent_class)->dispose (object);
}
static void
ostree_repo_file_class_init (OstreeRepoFileClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
gobject_class->finalize = ostree_repo_file_finalize;
gobject_class->dispose = ostree_repo_file_dispose;
}
static void
ostree_repo_file_init (OstreeRepoFile *self)
{
self->index = -1;
}
static gboolean
set_error_noent (GFile *self, GError **error)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND,
"No such file or directory: %s",
gs_file_get_path_cached (self));
return FALSE;
}
OstreeRepoFile *
_ostree_repo_file_new_root (OstreeRepo *repo,
const char *contents_checksum,
const char *metadata_checksum)
{
OstreeRepoFile *self;
g_return_val_if_fail (repo != NULL, NULL);
g_return_val_if_fail (contents_checksum != NULL, NULL);
g_return_val_if_fail (strlen (contents_checksum) == 64, NULL);
g_return_val_if_fail (metadata_checksum != NULL, NULL);
g_return_val_if_fail (strlen (metadata_checksum) == 64, NULL);
self = g_object_new (OSTREE_TYPE_REPO_FILE, NULL);
self->repo = g_object_ref (repo);
self->tree_contents_checksum = g_strdup (contents_checksum);
self->tree_metadata_checksum = g_strdup (metadata_checksum);
return self;
}
static OstreeRepoFile *
ostree_repo_file_new_child (OstreeRepoFile *parent,
const char *name)
{
OstreeRepoFile *self;
size_t len;
self = g_object_new (OSTREE_TYPE_REPO_FILE, NULL);
self->repo = g_object_ref (parent->repo);
self->parent = g_object_ref (parent);
self->name = g_strdup (name);
len = strlen(self->name);
if (self->name[len-1] == '/')
self->name[len-1] = '\0';
return self;
}
OstreeRepoFile *
_ostree_repo_file_new_for_commit (OstreeRepo *repo,
const char *commit,
GError **error)
{
OstreeRepoFile *ret = NULL;
gs_unref_variant GVariant *commit_v = NULL;
gs_unref_variant GVariant *tree_contents_csum_v = NULL;
gs_unref_variant GVariant *tree_metadata_csum_v = NULL;
char tree_contents_csum[65];
char tree_metadata_csum[65];
g_return_val_if_fail (repo != NULL, NULL);
g_return_val_if_fail (commit != NULL, NULL);
g_return_val_if_fail (strlen (commit) == 64, NULL);
if (!ostree_repo_load_variant (repo, OSTREE_OBJECT_TYPE_COMMIT,
commit, &commit_v, error))
goto out;
/* PARSE OSTREE_OBJECT_TYPE_COMMIT */
g_variant_get_child (commit_v, 6, "@ay", &tree_contents_csum_v);
ostree_checksum_inplace_from_bytes (g_variant_get_data (tree_contents_csum_v),
tree_contents_csum);
g_variant_get_child (commit_v, 7, "@ay", &tree_metadata_csum_v);
ostree_checksum_inplace_from_bytes (g_variant_get_data (tree_metadata_csum_v),
tree_metadata_csum);
ret = _ostree_repo_file_new_root (repo, tree_contents_csum, tree_metadata_csum);
out:
return ret;
}
static gboolean
do_resolve (OstreeRepoFile *self,
GError **error)
{
gboolean ret = FALSE;
gs_unref_variant GVariant *root_contents = NULL;
gs_unref_variant GVariant *root_metadata = NULL;
g_assert (self->parent == NULL);
if (!ostree_repo_load_variant (self->repo, OSTREE_OBJECT_TYPE_DIR_TREE,
self->tree_contents_checksum, &root_contents, error))
goto out;
if (!ostree_repo_load_variant (self->repo, OSTREE_OBJECT_TYPE_DIR_META,
self->tree_metadata_checksum, &root_metadata, error))
goto out;
self->tree_metadata = root_metadata;
root_metadata = NULL;
self->tree_contents = root_contents;
root_contents = NULL;
ret = TRUE;
out:
return ret;
}
static gboolean
do_resolve_nonroot (OstreeRepoFile *self,
GError **error)
{
gboolean ret = FALSE;
gboolean is_dir;
int i;
gs_unref_variant GVariant *container = NULL;
gs_unref_variant GVariant *tree_contents = NULL;
gs_unref_variant GVariant *tree_metadata = NULL;
gs_unref_variant GVariant *contents_csum_v = NULL;
gs_unref_variant GVariant *metadata_csum_v = NULL;
gs_free char *tmp_checksum = NULL;
if (!ostree_repo_file_ensure_resolved (self->parent, error))
goto out;
i = ostree_repo_file_tree_find_child (self->parent, self->name, &is_dir, &container);
if (i < 0)
{
set_error_noent ((GFile*)self, error);
goto out;
}
if (is_dir)
{
const char *name;
GVariant *files_variant;
files_variant = g_variant_get_child_value (self->parent->tree_contents, 0);
self->index = g_variant_n_children (files_variant) + i;
g_clear_pointer (&files_variant, (GDestroyNotify) g_variant_unref);
g_variant_get_child (container, i, "(&s@ay@ay)",
&name, &contents_csum_v, &metadata_csum_v);
g_free (tmp_checksum);
tmp_checksum = ostree_checksum_from_bytes_v (contents_csum_v);
if (!ostree_repo_load_variant (self->repo, OSTREE_OBJECT_TYPE_DIR_TREE,
tmp_checksum, &tree_contents,
error))
goto out;
g_free (tmp_checksum);
tmp_checksum = ostree_checksum_from_bytes_v (metadata_csum_v);
if (!ostree_repo_load_variant (self->repo, OSTREE_OBJECT_TYPE_DIR_META,
tmp_checksum, &tree_metadata,
error))
goto out;
self->tree_contents = tree_contents;
tree_contents = NULL;
self->tree_metadata = tree_metadata;
tree_metadata = NULL;
self->tree_contents_checksum = ostree_checksum_from_bytes_v (contents_csum_v);
self->tree_metadata_checksum = ostree_checksum_from_bytes_v (metadata_csum_v);
}
else
self->index = i;
ret = TRUE;
out:
return ret;
}
gboolean
ostree_repo_file_ensure_resolved (OstreeRepoFile *self,
GError **error)
{
gboolean ret = FALSE;
if (self->parent == NULL)
{
if (self->tree_contents == NULL)
if (!do_resolve (self, error))
goto out;
}
else
{
if (self->index == -1)
{
if (!do_resolve_nonroot (self, error))
goto out;
}
}
ret = TRUE;
out:
return ret;
}
gboolean
ostree_repo_file_get_xattrs (OstreeRepoFile *self,
GVariant **out_xattrs,
GCancellable *cancellable,
GError **error)
{
gboolean ret = FALSE;
gs_unref_variant GVariant *ret_xattrs = NULL;
if (!ostree_repo_file_ensure_resolved (self, error))
goto out;
if (self->tree_metadata)
ret_xattrs = g_variant_get_child_value (self->tree_metadata, 3);
else
{
if (!ostree_repo_load_file (self->repo, ostree_repo_file_get_checksum (self),
NULL, NULL, &ret_xattrs, cancellable, error))
goto out;
}
ret = TRUE;
ot_transfer_out_value(out_xattrs, &ret_xattrs);
out:
return ret;
}
GVariant *
ostree_repo_file_tree_get_contents (OstreeRepoFile *self)
{
return self->tree_contents;
}
GVariant *
ostree_repo_file_tree_get_metadata (OstreeRepoFile *self)
{
return self->tree_metadata;
}
void
ostree_repo_file_tree_set_metadata (OstreeRepoFile *self,
const char *checksum,
GVariant *metadata)
{
g_clear_pointer (&self->tree_metadata, (GDestroyNotify) g_variant_unref);
self->tree_metadata = g_variant_ref (metadata);
g_free (self->tree_metadata_checksum);
self->tree_metadata_checksum = g_strdup (checksum);
}
const char *
ostree_repo_file_tree_get_contents_checksum (OstreeRepoFile *self)
{
return self->tree_contents_checksum;
}
const char *
ostree_repo_file_tree_get_metadata_checksum (OstreeRepoFile *self)
{
return self->tree_metadata_checksum;
}
/**
* ostree_repo_file_get_repo:
* @self:
*
* Returns: (transfer none): Repository
*/
OstreeRepo *
ostree_repo_file_get_repo (OstreeRepoFile *self)
{
return self->repo;
}
/**
* ostree_repo_file_get_root:
* @self:
*
* Returns: (transfer none): The root directory for the commit referenced by this file
*/
OstreeRepoFile *
ostree_repo_file_get_root (OstreeRepoFile *self)
{
OstreeRepoFile *parent = self;
while (parent->parent)
parent = parent->parent;
return parent;
}
const char *
ostree_repo_file_get_checksum (OstreeRepoFile *self)
{
int n;
gboolean is_dir;
GVariant *files_variant;
GVariant *dirs_variant;
GVariant *csum_bytes;
if (!self->parent)
return self->tree_metadata_checksum;
if (self->cached_file_checksum)
return self->cached_file_checksum;
n = ostree_repo_file_tree_find_child (self->parent, self->name, &is_dir, NULL);
g_assert (n >= 0);
files_variant = g_variant_get_child_value (self->parent->tree_contents, 0);
dirs_variant = g_variant_get_child_value (self->parent->tree_contents, 1);
if (is_dir)
{
g_variant_get_child (dirs_variant, n,
"(@s@ay@ay)", NULL, NULL, &csum_bytes);
}
else
{
g_variant_get_child (files_variant, n,
"(@s@ay)", NULL, &csum_bytes);
}
g_clear_pointer (&files_variant, (GDestroyNotify) g_variant_unref);
g_clear_pointer (&dirs_variant, (GDestroyNotify) g_variant_unref);
self->cached_file_checksum = ostree_checksum_from_bytes_v (csum_bytes);
g_variant_unref (csum_bytes);
return self->cached_file_checksum;
}
static gboolean
ostree_repo_file_is_native (GFile *file)
{
return FALSE;
}
static gboolean
ostree_repo_file_has_uri_scheme (GFile *file,
const char *uri_scheme)
{
return g_ascii_strcasecmp (uri_scheme, "ostree") == 0;
}
static char *
ostree_repo_file_get_uri_scheme (GFile *file)
{
return g_strdup ("ostree");
}
static char *
ostree_repo_file_get_basename (GFile *file)
{
OstreeRepoFile *self = OSTREE_REPO_FILE (file);
return g_strdup (self->name);
}
static char *
ostree_repo_file_get_path (GFile *file)
{
OstreeRepoFile *self = OSTREE_REPO_FILE (file);
OstreeRepoFile *parent;
GString *buf;
GSList *parents;
GSList *iter;
buf = g_string_new ("");
parents = NULL;
for (parent = self->parent; parent; parent = parent->parent)
parents = g_slist_prepend (parents, parent);
if (parents && parents->next)
{
for (iter = parents->next; iter; iter = iter->next)
{
parent = iter->data;
g_string_append_c (buf, '/');
g_string_append (buf, parent->name);
}
}
g_string_append_c (buf, '/');
if (self->name)
g_string_append (buf, self->name);
g_slist_free (parents);
return g_string_free (buf, FALSE);
}
static char *
ostree_repo_file_get_uri (GFile *file)
{
OstreeRepoFile *self = OSTREE_REPO_FILE (file);
const char *path;
char *uri_path;
char *ret;
path = gs_file_get_path_cached (file);
uri_path = g_filename_to_uri (path, NULL, NULL);
g_assert (g_str_has_prefix (uri_path, "file://"));
ret = g_strconcat ("ostree://",
self->tree_contents_checksum, "/", self->tree_metadata_checksum,
uri_path+strlen("file://"),
NULL);
g_free (uri_path);
return ret;
}
static char *
ostree_repo_file_get_parse_name (GFile *file)
{
return ostree_repo_file_get_uri (file);
}
static GFile *
ostree_repo_file_get_parent (GFile *file)
{
OstreeRepoFile *self = OSTREE_REPO_FILE (file);
return g_object_ref (self->parent);
}
static GFile *
ostree_repo_file_dup (GFile *file)
{
OstreeRepoFile *self = OSTREE_REPO_FILE (file);
if (self->parent)
return G_FILE (ostree_repo_file_new_child (self->parent, self->name));
else
return G_FILE (_ostree_repo_file_new_root (self->repo, self->tree_contents_checksum, self->tree_metadata_checksum));
}
static guint
ostree_repo_file_hash (GFile *file)
{
OstreeRepoFile *self = OSTREE_REPO_FILE (file);
if (self->parent)
return g_file_hash (self->parent) + g_str_hash (self->name);
else
return g_str_hash (self->tree_contents_checksum) + g_str_hash (self->tree_metadata_checksum);
}
static gboolean
ostree_repo_file_equal (GFile *file1,
GFile *file2)
{
OstreeRepoFile *self1 = OSTREE_REPO_FILE (file1);
OstreeRepoFile *self2 = OSTREE_REPO_FILE (file2);
if (self1->parent && self2->parent)
{
return (g_str_equal (self1->name, self2->name) &&
g_file_equal ((GFile*)self1->parent, (GFile*)self2->parent));
}
else if (!self1->parent && !self2->parent)
{
return (g_str_equal (self1->tree_contents_checksum, self2->tree_contents_checksum) &&
g_str_equal (self1->tree_metadata_checksum, self2->tree_metadata_checksum));
}
else
return FALSE;
}
static const char *
match_prefix (const char *path,
const char *prefix)
{
int prefix_len;
prefix_len = strlen (prefix);
if (strncmp (path, prefix, prefix_len) != 0)
return NULL;
/* Handle the case where prefix is the root, so that
* the IS_DIR_SEPRARATOR check below works */
if (prefix_len > 0 &&
G_IS_DIR_SEPARATOR (prefix[prefix_len-1]))
prefix_len--;
return path + prefix_len;
}
static gboolean
ostree_repo_file_prefix_matches (GFile *parent,
GFile *descendant)
{
const char *remainder;
const char *parent_path;
const char *descendant_path;
parent_path = gs_file_get_path_cached (parent);
descendant_path = gs_file_get_path_cached (descendant);
remainder = match_prefix (descendant_path, parent_path);
if (remainder != NULL && G_IS_DIR_SEPARATOR (*remainder))
return TRUE;
return FALSE;
}
static char *
ostree_repo_file_get_relative_path (GFile *parent,
GFile *descendant)
{
const char *remainder;
const char *parent_path;
const char *descendant_path;
parent_path = gs_file_get_path_cached (parent);
descendant_path = gs_file_get_path_cached (descendant);
remainder = match_prefix (descendant_path, parent_path);
if (remainder != NULL && G_IS_DIR_SEPARATOR (*remainder))
return g_strdup (remainder + 1);
return NULL;
}
static GFile *
ostree_repo_file_resolve_relative_path (GFile *file,
const char *relative_path)
{
OstreeRepoFile *self = OSTREE_REPO_FILE (file);
OstreeRepoFile *parent;
char *filename;
const char *rest;
GFile *ret;
if (g_path_is_absolute (relative_path))
{
g_assert (*relative_path == '/');
if (strcmp (relative_path, "/") == 0)
return g_object_ref (ostree_repo_file_get_root (self));
if (self->parent)
return ostree_repo_file_resolve_relative_path ((GFile*)ostree_repo_file_get_root (self),
relative_path+1);
else
relative_path = relative_path+1;
}
rest = strchr (relative_path, '/');
if (rest)
{
rest += 1;
filename = g_strndup (relative_path, rest - relative_path);
}
else
filename = g_strdup (relative_path);
parent = ostree_repo_file_new_child (self, filename);
g_free (filename);
if (!rest)
ret = (GFile*)parent;
else
{
ret = ostree_repo_file_resolve_relative_path ((GFile*)parent, rest);
g_clear_object (&parent);
}
return ret;
}
static GFileEnumerator *
ostree_repo_file_enumerate_children (GFile *file,
const char *attributes,
GFileQueryInfoFlags flags,
GCancellable *cancellable,
GError **error)
{
OstreeRepoFile *self = OSTREE_REPO_FILE (file);
return _ostree_repo_file_enumerator_new (self,
attributes, flags,
cancellable, error);
}
static GFile *
ostree_repo_file_get_child_for_display_name (GFile *file,
const char *display_name,
GError **error)
{
return g_file_get_child (file, display_name);
}
static void
set_info_from_dirmeta (GFileInfo *info,
GVariant *metadata)
{
guint32 uid, gid, mode;
g_file_info_set_attribute_uint32 (info, "standard::type", G_FILE_TYPE_DIRECTORY);
/* PARSE OSTREE_OBJECT_TYPE_DIR_META */
g_variant_get (metadata, "(uuu@a(ayay))",
&uid, &gid, &mode, NULL);
uid = GUINT32_FROM_BE (uid);
gid = GUINT32_FROM_BE (gid);
mode = GUINT32_FROM_BE (mode);
g_file_info_set_attribute_uint32 (info, "unix::uid", uid);
g_file_info_set_attribute_uint32 (info, "unix::gid", gid);
g_file_info_set_attribute_uint32 (info, "unix::mode", mode);
}
static gboolean
query_child_info_dir (OstreeRepo *repo,
const char *metadata_checksum,
GFileAttributeMatcher *matcher,
GFileQueryInfoFlags flags,
GFileInfo **out_info,
GCancellable *cancellable,
GError **error)
{
gboolean ret = FALSE;
gs_unref_object GFileInfo *ret_info = NULL;
gs_unref_variant GVariant *metadata = NULL;
ret_info = g_file_info_new ();
g_file_info_set_attribute_uint32 (ret_info, "standard::type",
G_FILE_TYPE_DIRECTORY);
if (g_file_attribute_matcher_matches (matcher, "unix::mode"))
{
if (!ostree_repo_load_variant (repo, OSTREE_OBJECT_TYPE_DIR_META,
metadata_checksum, &metadata, error))
goto out;
set_info_from_dirmeta (ret_info, metadata);
}
ret = TRUE;
ot_transfer_out_value(out_info, &ret_info);
out:
return ret;
}
static gboolean
bsearch_in_file_variant (GVariant *variant,
const char *name,
int *out_pos)
{
gsize imax, imin;
gsize imid;
gsize n;
n = g_variant_n_children (variant);
if (n == 0)
return FALSE;
imax = n - 1;
imin = 0;
while (imax >= imin)
{
gs_unref_variant GVariant *child = NULL;
const char *cur;
int cmp;
imid = (imin + imax) / 2;
child = g_variant_get_child_value (variant, imid);
g_variant_get_child (child, 0, "&s", &cur, NULL);
cmp = strcmp (cur, name);
if (cmp < 0)
imin = imid + 1;
else if (cmp > 0)
{
if (imid == 0)
break;
imax = imid - 1;
}
else
{
*out_pos = imid;
return TRUE;
}
}
*out_pos = imid;
return FALSE;
}
int
ostree_repo_file_tree_find_child (OstreeRepoFile *self,
const char *name,
gboolean *is_dir,
GVariant **out_container)
{
int i;
GVariant *files_variant = NULL;
GVariant *dirs_variant = NULL;
GVariant *ret_container = NULL;
files_variant = g_variant_get_child_value (self->tree_contents, 0);
dirs_variant = g_variant_get_child_value (self->tree_contents, 1);
i = -1;
if (bsearch_in_file_variant (files_variant, name, &i))
{
*is_dir = FALSE;
ret_container = files_variant;
files_variant = NULL;
}
else
{
if (bsearch_in_file_variant (dirs_variant, name, &i))
{
*is_dir = TRUE;
ret_container = dirs_variant;
dirs_variant = NULL;
}
else
{
i = -1;
}
}
if (ret_container && out_container)
{
*out_container = ret_container;
ret_container = NULL;
}
g_clear_pointer (&ret_container, (GDestroyNotify) g_variant_unref);
g_clear_pointer (&files_variant, (GDestroyNotify) g_variant_unref);
g_clear_pointer (&dirs_variant, (GDestroyNotify) g_variant_unref);
return i;
}
gboolean
ostree_repo_file_tree_query_child (OstreeRepoFile *self,
int n,
const char *attributes,
GFileQueryInfoFlags flags,
GFileInfo **out_info,
GCancellable *cancellable,
GError **error)
{
gboolean ret = FALSE;
const char *name = NULL;
int c;
gs_unref_object GFileInfo *ret_info = NULL;
gs_unref_variant GVariant *files_variant = NULL;
gs_unref_variant GVariant *dirs_variant = NULL;
gs_unref_variant GVariant *content_csum_v = NULL;
gs_unref_variant GVariant *meta_csum_v = NULL;
char tmp_checksum[65];
GFileAttributeMatcher *matcher = NULL;
if (!ostree_repo_file_ensure_resolved (self, error))
goto out;
matcher = g_file_attribute_matcher_new (attributes);
g_assert (self->tree_contents);
files_variant = g_variant_get_child_value (self->tree_contents, 0);
dirs_variant = g_variant_get_child_value (self->tree_contents, 1);
c = g_variant_n_children (files_variant);
if (n < c)
{
g_variant_get_child (files_variant, n, "(&s@ay)", &name, &content_csum_v);
ostree_checksum_inplace_from_bytes (ostree_checksum_bytes_peek (content_csum_v),
tmp_checksum);
if (!ostree_repo_load_file (self->repo, tmp_checksum, NULL, &ret_info, NULL,
cancellable, error))
goto out;
}
else
{
n -= c;
c = g_variant_n_children (dirs_variant);
if (n < c)
{
g_variant_get_child (dirs_variant, n, "(&s@ay@ay)",
&name, NULL, &meta_csum_v);
ostree_checksum_inplace_from_bytes (ostree_checksum_bytes_peek (meta_csum_v),
tmp_checksum);
if (!query_child_info_dir (self->repo, tmp_checksum,
matcher, flags, &ret_info,
cancellable, error))
goto out;
}
}
if (name)
{
g_file_info_set_attribute_byte_string (ret_info, "standard::name",
name);
g_file_info_set_attribute_string (ret_info, "standard::display-name",
name);
if (*name == '.')
g_file_info_set_is_hidden (ret_info, TRUE);
}
else
{
g_clear_object (&ret_info);
}
ret = TRUE;
ot_transfer_out_value(out_info, &ret_info);
out:
if (matcher)
g_file_attribute_matcher_unref (matcher);
return ret;
}
static GFileInfo *
ostree_repo_file_query_info (GFile *file,
const char *attributes,
GFileQueryInfoFlags flags,
GCancellable *cancellable,
GError **error)
{
gboolean ret = FALSE;
OstreeRepoFile *self = OSTREE_REPO_FILE (file);
gs_unref_object GFileInfo *info = NULL;
if (!ostree_repo_file_ensure_resolved (self, error))
goto out;
if (!self->parent)
{
info = g_file_info_new ();
set_info_from_dirmeta (info, self->tree_metadata);
}
else
{
if (!ostree_repo_file_tree_query_child (self->parent, self->index,
attributes, flags,
&info, cancellable, error))
goto out;
g_assert (info != NULL);
}
ret = TRUE;
out:
if (!ret)
g_clear_object (&info);
else
g_object_ref (info);
return info;
}
static GFileAttributeInfoList *
ostree_repo_file_query_settable_attributes (GFile *file,
GCancellable *cancellable,
GError **error)
{
return g_file_attribute_info_list_new ();
}
static GFileAttributeInfoList *
ostree_repo_file_query_writable_namespaces (GFile *file,
GCancellable *cancellable,
GError **error)
{
return g_file_attribute_info_list_new ();
}
static GFileInputStream *
ostree_repo_file_read (GFile *file,
GCancellable *cancellable,
GError **error)
{
gboolean ret = FALSE;
OstreeRepoFile *self = OSTREE_REPO_FILE (file);
const char *checksum;
gs_unref_object GInputStream *ret_stream = NULL;
if (!ostree_repo_file_ensure_resolved (self, error))
goto out;
if (self->tree_contents)
{
g_set_error_literal (error, G_IO_ERROR,
G_IO_ERROR_IS_DIRECTORY,
"Can't open directory");
goto out;
}
checksum = ostree_repo_file_get_checksum (self);
if (!ostree_repo_load_file (self->repo, checksum, &ret_stream,
NULL, NULL, cancellable, error))
goto out;
ret = TRUE;
out:
if (!ret)
g_clear_object (&ret_stream);
else
g_object_ref (ret_stream);
return (GFileInputStream*)ret_stream;
}
static void
ostree_repo_file_file_iface_init (GFileIface *iface)
{
iface->dup = ostree_repo_file_dup;
iface->hash = ostree_repo_file_hash;
iface->equal = ostree_repo_file_equal;
iface->is_native = ostree_repo_file_is_native;
iface->has_uri_scheme = ostree_repo_file_has_uri_scheme;
iface->get_uri_scheme = ostree_repo_file_get_uri_scheme;
iface->get_basename = ostree_repo_file_get_basename;
iface->get_path = ostree_repo_file_get_path;
iface->get_uri = ostree_repo_file_get_uri;
iface->get_parse_name = ostree_repo_file_get_parse_name;
iface->get_parent = ostree_repo_file_get_parent;
iface->prefix_matches = ostree_repo_file_prefix_matches;
iface->get_relative_path = ostree_repo_file_get_relative_path;
iface->resolve_relative_path = ostree_repo_file_resolve_relative_path;
iface->get_child_for_display_name = ostree_repo_file_get_child_for_display_name;
iface->set_display_name = NULL;
iface->enumerate_children = ostree_repo_file_enumerate_children;
iface->query_info = ostree_repo_file_query_info;
iface->query_filesystem_info = NULL;
iface->find_enclosing_mount = NULL;
iface->query_settable_attributes = ostree_repo_file_query_settable_attributes;
iface->query_writable_namespaces = ostree_repo_file_query_writable_namespaces;
iface->set_attribute = NULL;
iface->set_attributes_from_info = NULL;
iface->read_fn = ostree_repo_file_read;
iface->append_to = NULL;
iface->create = NULL;
iface->replace = NULL;
iface->open_readwrite = NULL;
iface->create_readwrite = NULL;
iface->replace_readwrite = NULL;
iface->delete_file = NULL;
iface->trash = NULL;
iface->make_directory = NULL;
iface->make_symbolic_link = NULL;
iface->copy = NULL;
iface->move = NULL;
iface->monitor_dir = NULL;
iface->monitor_file = NULL;
iface->supports_thread_contexts = TRUE;
}
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